Science-Based Nutrition™Plant Sourced Vitamin D3Dietary SupplementVeganNon-GMO / Gluten Free / Soy FreeBrighter days ahead. Doctor's Best Vegan D3 contains Vitashine D3, a plant source of vitamin D3 (as cholecalciferol). Vitashine is made using a special extract of lichen - a small, unique plant species - and is delivered in the form of cholecalciferol, which is better absorbed by the body to deliver the best results. All the better since vitamin D plays an important role in most organs and systems of the body, regulates phosphorus and calcium levels for healthy bones and teeth, and helps provide optimal immune function. Influences the chemical messengers of the immune system"Sunshine Vitamin" needed to maintain strong bones and teethSupports cellular function and a healthy cardiovascular system